Lenovo A3000 has power, and suddenly the screen goes black, and pressing the power button can t turn

Sorry for the inconvenience! The A3000 tablet has a reset button for forced shutdown, you can remove the back cover, there is a small hole in the upper right corner, click with a needle to force the shutdown (do not click on the sealing sticker with the S icon, it will affect the warranty). If the screen is still black when turned on, and it is invalid to use the standard charger to charge it and then turn it on, it is recommended to go to after-sales.

Officially authorized repair site inquiry.

The business hours of the maintenance site are usually from 9:00 to 18:00 from Monday to Sunday, and the stations will be slightly adjusted according to their own operations.

Dear Lenovo users, hello:

It is recommended that you perform the following reset operation:

1. Remove the battery and adapter and hold the power switch for 30s, then replace the battery and adapter and start again.

2. If your computer battery cannot be removed, it is recommended that you check whether there is a reset hole at the bottom of your notebook, and gently prick the reset hole with a needle to reset it.

Turn on the chassis and then unplug the switch with a power keyboard and point it with an iron thing, 2 really want to touch, if it doesn't light up, the power supply is burned. When it is lit, it means that the power is stored, or it may be that the board is not powered enough.

When I played the game today, it became like this.,The indicator light doesn't light up.,There's no response at all.。

Burned, or the battery is depleted.

Dear Lenovo users, hello:

Isn't it a screen protector Just go east on the keyboard.

Lenovo A3900 mobile phone will automatically shut down when it is out of power, click the power button and it will not turn on, it is recommended to use the following steps to make a simple troubleshooting attempt:

1.Caused by poor or abnormal battery contact: It is recommended to reinsert and remove the battery for a restart attempt, if there are other batteries that can be replaced;

2.Use the standard charger to charge for about 30 minutes, and then press and hold the power button again.

If the problem still cannot be effectively solved, it cannot be ruled out that it is caused by the failure of physical buttons or related power management components, for normal use in the future, it is recommended to take the time to go to a nearby Lenovo authorized maintenance station for specific testing and treatment.

1. Display failure:

1) If the display screen is faulty, the host can be turned on normally, and the boot sound is heard, and the display screen needs to be replaced.

2) The screen cable is faulty, the screen cable is loose or disconnected, the screen is still black but the sound is normal, and the screen cable needs to be plugged and unplugged or replaced;

2. Memory failure: If the memory is loose or malfunctional, it will also cause no display when the power is turned on, and the memory needs to be plugged and unplugged or replaced.

3. Motherboard failure: the electrical performance of the motherboard is faulty or burned, and the common host is powered on without display, and the motherboard needs to be replaced;

4. Graphics card failure: The integrated graphics card and independent graphics card of the notebook are soldered on the motherboard, and the failure is basically power-on and no display, so the motherboard needs to be replaced to solve it;

5. CPU failure: The probability of CPU failure is relatively low, but there will also be no power on, and the CPU needs to be replaced.

If the above faults occur, it is recommended that users with poor hands-on ability be sent to the maintenance station for maintenance.

Dear Lenovo users, hello:

According to the description, if the battery is depleted, we recommend that you try charging it with the standard charger for half an hour before trying to turn it on.

At the same time, you can also try to loosen the back cover of the A3000, push the reset button with the thimble and try to power it on again.

For the stable operation of your equipment and the maintenance of the battery, the battery can start charging when the battery is low, and after it is fully charged, it can be disconnected from charging for half an hour, and it should not be overcharged and discharged.

If there are any problems during use, you can also take the time to go to the local Lenovo after-sales service center and let the engineers help detect and solve them. You can log in to the official website to check the address.

Hello, it is recommended that you go to the nearest Lenovo customer service center, and the engineer will help you detect and solve;

You can use the following link to find Lenovo service outlets.

In fact, it is very simple, 10 yuan to buy a universal charger, open the back cover of the mobile phone, remove the screws, take out the battery, the 2 levels of the universal charger are tied to 2 thin copper wires, the battery has 2 red and 2 black, one of which is spare, contact any group of red and black lines, start charging, about 30 minutes or so, install the battery, turn on, the power is not much, hurry up and continue charging, it is OK to be full, if you feel that you are in trouble, just find a small shop to repair your mobile phone, and ask him to activate the battery, 20-40 yuan to get it, 30 minutes to solve the problem.

We apologize for any inconvenience this may cause and affect your use.

It is recommended that you first confirm whether the current device is turned on, and make a simple judgment by dialing ** or adjusting the volume button from other mobile phones

a.Power on status:

1.If there is a black screen after the call, it is recommended that you remove it, and then you can go to the detection proximity sensor option for observation, if there is an abnormality, it is recommended that you send it to the repair station in time;

You can use the Leo Service to detect if there is an abnormality in the proximity sensor, and here's how to do it:

Le service--testing center--proximity sensor.

3.If it cannot be improved after the above operations, please send it to the repair site in time, which may be caused by abnormal display screen or wiring.

b.Shutdown status:

If your device does not respond when you click the power button and does not turn on, we recommend that you perform the following steps to troubleshoot the device:

1.Caused by poor or abnormal battery contact: It is recommended that you reinsert the battery to restart the attempt, if you have other batteries, it is recommended that you replace them;

2.It is recommended that you use the standard charger to charge for about 30 minutes, and then press and hold the power button again.

Lenovo Authorized Repair Site Query:

1.There are several reasons why your computer won't shut down:

1) Defects in the automatic shutdown program in the system file. Enter the command: "rundll32 ,exitwindows" in "Start Running" to see if it can shut down normally, if this command can shut down normally, it means that the automatic shutdown program has some kind of defect, if you are using a Windows98 system, check the integrity of the system files and patch the files in the "Start Program Attachments System Tools System Information Tools System File Checker".

If you use a different system (ME 2000 XP), you can also patch files in the corresponding project. If patching the file still doesn't solve the problem, you can only reinstall the system. If you run "rundll32, exitwindows" and cannot shut down normally, it may be that some system programs in the operating system are defective, but the solution is still to patch the system or reinstall the system;

2) Viruses and some defective applications or system tasks may cause shutdown failure. Check for viruses and close all applications before shutting down. Because some applications are loaded at system startup, you can use the command in the Startup menu (in Start Running:

msconfig"), in order to see if there are any files that affect the shutdown (of course, they will not take effect until they are restarted);

3) Peripherals and drivers are not compatible well and cannot respond to rapid shutdown. You can enter the command "msconfig" in Start Running, select "Advanced" in the "General" tab, and "Disable Rapid Shutdown" in the window that opens.

If you suspect that the peripherals are faulty, you can also uninstall the peripherals one by one to check them so that you can find the affected peripherals.

2.If the computer is stuck and cannot be shut down, you can press and hold the power button to force it to shut down.

Long press the shutdown button to force the shutdown.

If it can't be turned on, unplug the power supply and then connect the power supply to turn it on again.

I've also had a situation where the power supply is broken.

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